The Thai script is an abugida, a writing system where consonants have an inherent vowel sound. This means that vowel marks are used to modify or replace this built-in sound. The alphabet consists of 44 consonant letters and a set of vowel symbols that represent 32 distinct vowel sounds.

While there are 44 consonant characters, many are duplicates in terms of sound. This is good news for learners, as it means there are only 21 unique consonant sounds to master. The duplicates exist for historical reasons, stemming from sounds that were distinct in older forms of the language but have since merged.

Each consonant is traditionally associated with a word, like a mnemonic device. For example, the first consonant, ก, is called ก ไก่ (gɔɔ gài), where "gɔɔ" is the sound and "gài" (chicken) is the associated word.

To really understand Thai, you need to know that all consonants are sorted into three classes. This classification is the key to determining a word's tone, a topic we'll explore later. For now, just focus on understanding the three groups.

Every consonant belongs to one of three groups: high, mid, or low. This system is a core feature of the Thai script.

The low class is the largest group. Don't worry about memorizing which letter belongs to which class just yet. The important thing is to know that these classes exist and that they play a crucial role in the language.

Thai has 32 vowel sounds, which are categorized into short and long pairs. The length of a vowel can change a word's meaning entirely, so the distinction is important. For instance, a short "a" sound versus a long "aa" sound can create two different words.

This system might seem complex, but it's very systematic. Learning to recognize the consonant as the 'base' and the vowels as additions in different positions is the first step to being able to read Thai words.

Getting comfortable with the shapes and classes of consonants, along with the positioning of vowels, builds a strong foundation. Next, we'll see how these pieces come together.